Home / 727,856.62-1,092,123.11-278,428.93

Finding the Fourth Proportional to 727,856.62, 1,092,123.11 and 278,428.93

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Solution

The fourth proportional to 727,856.62, 1,092,123.11 and 278,428.93 is: 417,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,856.62 : 1,092,123.11 = 278,428.93 : x
  2. Step 2: Convert to fraction form
    727,856.62/1,092,123.11 = 278,428.93/x
  3. Step 3: Cross multiply
    727,856.62x = 1,092,123.11 × 278,428.93
  4. Step 4: Simplify right side
    727,856.62x = 304,078,668,945.57
  5. Step 5: Solve for x
    x = 304,078,668,945.57/727,856.62
  6. Step 6: Final answer
    x = 417,772.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.